Mod conflictsMod Does Not Implement VertexBufferWriter (Sodium Compatibility Crash)
What it looks like in the log
java.lang.IllegalArgumentException: The class com.xtracr.realcamera.util.VertexRecorder$VertexRecord does not implement interface VertexBufferWriter,
How to fix it
- Check the package name immediately after `The class` in the error line to identify the conflicting mod (for example, `com.xtracr.realcamera` is the Real Camera mod).
- Download and install the latest version of that mod from Modrinth or CurseForge, as updates for mods like Real Camera specifically add support for Sodium's `VertexBufferWriter` interface.
- If you are using Sodium 0.5.x on Fabric, install the matching version of Indium to restore full rendering compatibility (do not install Indium if you are using Sodium 0.6.0 or newer).
- If the mod author has not released a Sodium-compatible update yet, remove the conflicting mod from your `mods` folder or downgrade Sodium to an earlier release supported by that mod.
| Loaders | Fabric, Quilt, Neoforge |
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| Severity | Stops the game |
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| Category | Mod conflicts |
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